Fuel Problems, This Is Driving Me Nuts!

Discussion in 'Flat Fender Tech' started by garage gnome, Jan 29, 2017.

  1. Jan 29, 2017
    garage gnome

    garage gnome Rust polisher Sponsor

    Western MA
    Joined:
    Jun 19, 2009
    Messages:
    1,467
    I have been having this problem with my jeep. It comes and goes so I am having a really hard time figuring it out. For what ever reason, the fuel pump quits working. It is a new single action glass bowl pump from Walcks 4WD. I did have a bunch of junk in the tank plug the suction tube up, which I cleaned out.

    When it stops pumping, I have to pour some gas in the pump and a little down the carburetor. I usually have to do this 2 or 3 times before it starts pumping again. The gas cap vent seems to be working fine.

    When I rebuilt the engine, the cam lobe for the pump wasn't worn at all.

    So, do you guys think the fuel pump got wounded when the line was plugged up?
     
  2. Jan 29, 2017
    Patrick

    Patrick Super Moderator Staff Member Sponsor

    Los Alamos, NM
    Joined:
    Sep 22, 2002
    Messages:
    8,328
    Buy a Carter without glass bowl from rock Auto or somewhere. Those Chinese so-called reproduction units with the glass bowl are junk. The casting around the valves cracks and/ or breaks. The valve(s) can move around in their cast "seats" causing the pump to work sometimes, sometimes not. Went through this with two different pumps (both the same)
     
  3. Jan 29, 2017
    garage gnome

    garage gnome Rust polisher Sponsor

    Western MA
    Joined:
    Jun 19, 2009
    Messages:
    1,467
    Hmmm never thought of that. It is fine going down the road and always happens off road. My red jeep must have a good one, but it doesn't see off road. Guess I'll buy 2 and keep one around.
     
  4. Jan 29, 2017
    PeteL

    PeteL Member Sponsor

    Joined:
    Aug 3, 2003
    Messages:
    5,236
    On the OEM pumps, old gaskets under the glass dome can be trouble, causes a loss of vacuum if so. Easy fix.
     
  5. Jan 29, 2017
    Glenn

    Glenn Kinda grumpy old man Staff Member Sponsor

    Apopka, Fl
    Joined:
    Sep 21, 2002
    Messages:
    7,434
    I'm glad you responded to this Patrick, I'd been meaning to ask how yours was working and now I know it's not. :D;)
     
  6. Jan 30, 2017
    Patrick

    Patrick Super Moderator Staff Member Sponsor

    Los Alamos, NM
    Joined:
    Sep 22, 2002
    Messages:
    8,328
    Actually.....There's still one on Cameron's daily-driven '59.
     
  7. Jan 30, 2017
    Glenn

    Glenn Kinda grumpy old man Staff Member Sponsor

    Apopka, Fl
    Joined:
    Sep 21, 2002
    Messages:
    7,434
    Interesting. I guess every so often they must make one that has some quality. All I had to do was bump one of my junk ones on the workbench and the valves fell out of position. I've got a couple of the Carter pumps you mentioned.....good quality there.
     
    Patrick likes this.
  8. Jan 31, 2017
    masscj2a

    masscj2a Sponsor Sponsor

    Chester Mass
    Joined:
    Dec 27, 2013
    Messages:
    179
    I had the same problem with my 3b, added an electric down on the frame rail and never had the problem again.
     
  9. Feb 1, 2017
    garage gnome

    garage gnome Rust polisher Sponsor

    Western MA
    Joined:
    Jun 19, 2009
    Messages:
    1,467
    I just put the new carter in from rock auto. We'll see if that solves the problem. I'll know in a few days because the old one would drain the back if it sat for a few days. It did pick fuel up right away which was nice.
     
    Last edited: Feb 1, 2017
  10. Feb 5, 2017
    garage gnome

    garage gnome Rust polisher Sponsor

    Western MA
    Joined:
    Jun 19, 2009
    Messages:
    1,467
    New fuel pump solved the problem. Thanks Patrick! (y)
     

Share This Page

New Posts